Political songs in Australia have changed a lot since the rock-fuelled protest heyday of the 1980s and '90s, but the rage remains, and the new guard are fighting for change on everything from 'Invasion Day' to refugees and gay marriage.

The Melbourne Symphony Orchestra is celebrating the 35th anniversary of American composer John Williams' score to Indiana Jones and the Raiders of the Lost Ark, by performing it as the movie screens above their heads.

From Kev Carmody to Archie Roach and Peter Garrett, the voices behind Australia's most iconic protest anthems reflect on their place in the Indigenous civil rights struggle, and whether there is still room for politics in the music scene.